CVE-2021-21998: VMware Carbon Black App Control

Critical severity, CVSS 9.8. EPSS: 10.6% chance of exploitation in the next 30 days.

VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 has an authentication bypass. A malicious actor with network access to the VMware Carbon Black App Control management server might be able to obtain administrative access to the product without the need to authenticate.

Affected products

• VMware Carbon Black App Control: from 8.5, before 8.5.8 (fixed in 8.5.8); from 8.6, before 8.6.2 (fixed in 8.6.2); version 8.0 only; version 8.1 only

Published 2021-06-23. Last modified 2026-06-17.